Evidence map›Paper›PMID 20062077›Full record

ArticleOncogene2010

SP600125 suppresses Cdk1 and induces endoreplication directly from G2 phase, independent of JNK inhibition.

J A Kim, J Lee, R L Margolis, R Fotedar

Abstract read
In one paragraph

Article in Oncogene, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.1field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. A New Method for Chromosomes Preparation by ATP-Competitive Inhibitor SP600125Frontiers in bioengineering and biotechnology · 2020
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

J A KimSidney Kimmel Cancer Center, San Diego, CA, USA.
J Lee
R L Margolis
R Fotedar
Sidney Kimmel Cancer Center · US

Funding

Induction of Cell Cleavage by the Mitotic SpindleR01GM068107 · NIGMS · SIDNEY KIMMEL CANCER CENTER · PI MARGOLIS, ROBERT LEWIS · 2005 to 2009
$1.8M
Role of WISp39 and Ubiquitination in p21 FunctionR01CA101810 · NCI · SIDNEY KIMMEL CANCER CENTER · PI FOTEDAR, RATI · 2004 to 2008
$1.7M
UV and p21 DegradationR01CA108947 · NCI · SIDNEY KIMMEL CANCER CENTER · PI FOTEDAR, RATI · 2005 to 2009
$1.7M
Induction and maintenance of mitosis by Cdk1 suppression of Protein phosphatase 1R01GM088716 · NIGMS · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI MARGOLIS, ROBERT LEWIS · 2009 to 2012
$1.5M
NCI NIH HHS CA101810NCI NIH HHS CA108947NCI NIH HHS R01 CA101810NCI NIH HHS R01 CA108947NIGMS NIH HHS GM068107NIGMS NIH HHS GM088716NIGMS NIH HHS R01 GM068107NIGMS NIH HHS R01 GM088716
6 · The paper itself

Abstract

Cell cycle controls ensure that DNA replication (S phase) follows mitosis resulting in two precise copies of the genome. A failure of the control mechanisms can result in multiple rounds of DNA replication without cell division. In endoreplication, cells with replicated genomes bypass mitosis, then replicate their DNA again, resulting in polyploidy. Endoreplication from G2 phase lacks all hallmarks of mitosis. Using synchronized cells, we show that the c-Jun N-terminal kinase (JNK) inhibitor, SP600125, prevents the entry of cells into mitosis and leads to endoreplication of DNA from G2 phase. We show that cells proceed from G2 phase to replicate their DNA in the absence of mitosis. This effect of SP600125 is independent of its suppression of JNK activity. Instead, the inhibitory effect of SP600125 on mitotic entry predominantly occurs upstream of Aurora A kinase and Polo-like kinase 1, resulting in a failure to remove the inhibitory phosphorylation of Cdk1. Importantly, our results directly show that the inhibition of Cdk1 activity and the persistence of Cdk2 activity in G2 cells induces endoreplication without mitosis. Furthermore, endoreplication from G2 phase is independent of p53 control.

Indexed as

AnthracenesAurora KinasesBlotting, WesternCDC2 Protein KinaseCell Cycle ProteinsCell Line, TumorCyclin BCyclin-Dependent Kinase 2DNA ReplicationEnzyme ActivationFlow CytometryG2 PhaseHCT116 CellsHumansJNK Mitogen-Activated Protein KinasesMitosisAnthracenesAurora KinasesCDC2 Protein KinaseCell Cycle ProteinsCyclin BCyclin-Dependent Kinase 2JNK Mitogen-Activated Protein KinasesPolo-Like Kinase 1Protein Serine-Threonine KinasesProto-Oncogene ProteinspyrazolanthroneTumor Suppressor Protein p53

Identifiers

PMID20062077
PMCPMC3145494
OpenAlexW2013520973

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.